prepareForGC     1310 Source/platform/heap/Heap.cpp         (*it)->prepareForGC();
prepareForGC     1325 Source/platform/heap/Heap.cpp     prepareForGC();
prepareForGC      805 Source/platform/heap/Heap.h     static void prepareForGC();
prepareForGC      332 Source/platform/heap/ThreadState.h     void prepareForGC();